Retinal Vein Occlusion (RVO) is a condition where one of the veins in the retina becomes blocked. This blockage can lead to vision problems, as it prevents blood from draining properly from the eye. RVO is often caused by conditions like high blood pressure, diabetes, or high cholesterol, which can damage the blood vessels. Symptoms of RVO may include sudden vision loss or blurred vision in one eye. Diagnosis typically involves a comprehensive eye exam, and treatment options may include medications, laser therapy, or injections to reduce swelling and improve vision. Early detection is crucial for better outcomes.